<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/file/excel" enctype="multipart/form-data" method="post">
    <input type="file" name="excelFile">
    <input type="submit">OK</input>
</form>
</body>
</html>